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Table 3 Linear and angular variables of the hard and soft tissue

From: Changes of lip morphology following mandibular setback surgery using 3D cone-beam computed tomography images

Reference mark Definition
Linear variables (mm)
 Cheilion width Distance between cheilion of the one side and the other side
 Upper lip height Distance between Ls and Stm
 Lower lip height Distance between Li and Stm
 Upper lip vermilion length Distance between Ch(Rt) and CBP Rt and Ls and CBP Lt and Ch(Lt)
 Lower lip vermilion length Distance between Ch(Rt) and LLBP Rt and Li and LLBP Lt and Ch(Lt)
Angular variables (°)
 UL prominence angle Angle constructed among Ch, Ls, and Ch
 LL prominence angle Angle constructed among Ch, Li, and Ch
 Stomion prominence angle Angle constructed among Ch, Stm, and Ch
 Lateral upper lip prominent angle 1 Angle constructed among Sn, Ls, and UP in lateral view
 Lateral upper lip prominent angle 2 Angle constructed among Ls, UP, and Stm in lateral view
 Lateral lower lip prominent angle 1 Angle constructed among Stm, LP, and Li in lateral view
 Lateral lower lip prominent angle 2 Angle constructed among LP, Li, and Ln in lateral view